The heat tracing pipes of the device always freeze over; is there any good solution for this?
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The heat tracing pipeline of the device always freezes over; is there any good solution? The weather in the northeast is already very cold now, especially at night; sometimes the heat pipes freeze up. Is there any good solution for this?
The best solution is to switch to electric heating
This post was last edited by Final Fantasy on 2009-11-15 at 21:49. Steam heating: 1. Check whether the trap is clogged; consider replacing it with a new one. 2. If the condensate flows into the main condensate pipe, check the pressure in that pipe. If the condensate pressure is close to the steam pressure, it indicates that there is a direct connection through the trap, which needs to be identified and replaced. Hot water heating: There should be a pressure difference of over 0.1 MPa between the supply water pressure and the return water pressure, and the supply water temperature should be above 85 degrees Celsius. The most direct and effective method: direct discharge (heh, too wasteful; not recommended)
I believe the freezing of the heat tracing lines is mainly due to low ambient temperatures. Since we also want to save energy and reduce consumption, I offer the following suggestions: 1. The heat tracing for pipelines should be arranged properly, with waste heat being collected and discharged into a atmospheric pressure water storage tank, which facilitates accurate checking of the functionality of each heating system； 2. Increase the thickness of the insulation layer, and improve the inspection of insulation sealing and tightness ； 3. The key pipelines prone to solidification are equipped with sleeve-type heat tracing.
Freezing of the heat tracing main indicates that the return water flow is not smooth. Find a point to apply the tape for discharge
This problem is now a common occurrence in the northeast. In addition to the methods suggested by those above, I recommend increasing the frequency of inspections.
Typically, northern refineries have anti-freezing procedures in winter. Therefore, the best way to prevent freezing is to strictly follow the operating procedures and implement proper shift handover protocols; this is indeed the best approach.
The design work is quite busy at the moment; heating pipelines are generally not detailed in the drawings, and the construction party proceeds with construction based on the principle of proximity. This results in some pipelines being too long, making them prone to freezing. Suggestion: Organize the heat tracing pipelines within the device so as to have a clear understanding of them, which facilitates management. However, the initial sorting involves a lot of work. :) Furthermore, when installing new equipment, the operation manager must clarify the direction of heat tracing to facilitate future management.
Thermal insulation pipelines often experience freezing; this is usually due to poor return flow or high back pressure, or it may be caused by the long length of the thermal insulation pipelines. This is a design issue that requires modification.